Synonyms of flabbergast

1 Syllable

awed, shock, stuns, stun, throw, daze

2 Syllables

abash, boggle, stagger, boggled, nonplus, besot, boggling, dumbfound, astound, confound

3 Syllables

overwhelm, amazed, besotting, astonish, disconcert, amaze, dumbfounding, confounding, astounded, stupefying

4 Syllables

astonishes, astonished, overcome

5 Syllables

misidentifies, misidentifying, profundicate, misidentify, misidentified